# ISO 8521:1998 — Withdrawn and superseded ISO standards

For ISO 8521:1998, item title is Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the apparent initial circumferential tensile strength; status code is 9599; successor is ISO 8521:2009; withdrawn / published date is 1998-12-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO 8521:1998 _(verified: appears in the quote below)_
- **Item title:** Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the apparent initial circumferential tensile strength _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 8521:2009
- **Withdrawn / published date:** 1998-12-20 _(verified: appears in the quote below)_

## What the source says

> 15747,IS,,ISO 8521:1998,Plastics piping systems — Glass-reinforced thermosetting plastics (GRP) pipes — Determination of the apparent initial circumferential tensile strength,Systèmes de canalisations en matières plastiques — Tubes en plastiques thermodurcissables renforcés de verre (PRV) — Détermination de la résistance en traction circonférencielle initiale apparente,1998-12-20,1,['23.040.20'],ISO/TC 138/SC 6,9599,,[46535],['en'],17,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).